{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:I4HFWOFNNPUGTDCRVT2RZBIPNC","short_pith_number":"pith:I4HFWOFN","canonical_record":{"source":{"id":"2008.12120","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-27T14:00:23Z","cross_cats_sorted":[],"title_canon_sha256":"4105426690f8e982941b7783fddbb240ce1bc1890c3d532eefea7d1a4c959ea6","abstract_canon_sha256":"96944790aad8137a9ff562b3877ed43333ef06ab2f0a7aeb30bf4b3d6911bea7"},"schema_version":"1.0"},"canonical_sha256":"470e5b38ad6be8698c51acf51c850f68b3ec08c62f8f4f00a5f696a00b736a9b","source":{"kind":"arxiv","id":"2008.12120","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.12120","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"arxiv_version","alias_value":"2008.12120v2","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.12120","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_12","alias_value":"I4HFWOFNNPUG","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_16","alias_value":"I4HFWOFNNPUGTDCR","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_8","alias_value":"I4HFWOFN","created_at":"2026-07-05T01:48:51Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:I4HFWOFNNPUGTDCRVT2RZBIPNC","target":"record","payload":{"canonical_record":{"source":{"id":"2008.12120","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-27T14:00:23Z","cross_cats_sorted":[],"title_canon_sha256":"4105426690f8e982941b7783fddbb240ce1bc1890c3d532eefea7d1a4c959ea6","abstract_canon_sha256":"96944790aad8137a9ff562b3877ed43333ef06ab2f0a7aeb30bf4b3d6911bea7"},"schema_version":"1.0"},"canonical_sha256":"470e5b38ad6be8698c51acf51c850f68b3ec08c62f8f4f00a5f696a00b736a9b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:48:51.875863Z","signature_b64":"bXqfxyJ+bRLIzKHTtWyzlYbbuQR+MSG9i3Ax2LlUjZcKWU7YUrciOeTv9oPM3z505qVjse0ujMlwz568SZk+Bg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"470e5b38ad6be8698c51acf51c850f68b3ec08c62f8f4f00a5f696a00b736a9b","last_reissued_at":"2026-07-05T01:48:51.875443Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:48:51.875443Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.12120","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:48:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"PEfEgeYY7gRjtwpSHBbcZ3CIHFkoVaaxrlf2PXnM1lgpWMBoUS60LY7C+G8I68L9GErl6+2bwws0njsliSEaDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T22:48:58.214050Z"},"content_sha256":"5bf51274a7bf707d7a06c511aa9643755d3608232c0f5b83dd101a6b6dd6365b","schema_version":"1.0","event_id":"sha256:5bf51274a7bf707d7a06c511aa9643755d3608232c0f5b83dd101a6b6dd6365b"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:I4HFWOFNNPUGTDCRVT2RZBIPNC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Magnetic field and prominences of the young, solar-like, ultra-rapid rotator V530 Per","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. A. Vidotto, B. Zaire, C. P. Folsom, C. Villarreal D'Angelo, F. Gallet, J. -F. Donati, M. Jardine, P. Petit, S. C. Marsden, T. -Q. Cang","submitted_at":"2020-08-27T14:00:23Z","abstract_excerpt":"We investigate signatures of magnetic fields and activity at the surface and in the prominence system of the ultra-rapid rotator V530 Per, a G-type solar-like member of the young open cluster $\\alpha$~Persei. This object has a rotation period shorter than all stars with available magnetic maps. With a time-series of spectropolarimetric observations gathered with ESPaDOnS over 2 nights on the CFHT, we reconstruct the surface brightness and large-scale magnetic field of V530 Per using the Zeeman-Doppler imaging method, assuming an oblate stellar surface. We also estimate the short term evolution"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.12120","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2008.12120/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:48:51Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ZPfoNWa/ujRswPXJdQwYQhWLj7+CFL2WnP0aacqj3lZfFggGxdA712ZllM7U+L73gcL0nqa/PbqXI2c7sosUDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-13T22:48:58.214424Z"},"content_sha256":"461172451cb21a246cb7da439da9b4e15675cc606779a3a68325cef4ab0a85f6","schema_version":"1.0","event_id":"sha256:461172451cb21a246cb7da439da9b4e15675cc606779a3a68325cef4ab0a85f6"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I4HFWOFNNPUGTDCRVT2RZBIPNC/bundle.json","state_url":"https://pith.science/pith/I4HFWOFNNPUGTDCRVT2RZBIPNC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I4HFWOFNNPUGTDCRVT2RZBIPNC/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-07-13T22:48:58Z","links":{"resolver":"https://pith.science/pith/I4HFWOFNNPUGTDCRVT2RZBIPNC","bundle":"https://pith.science/pith/I4HFWOFNNPUGTDCRVT2RZBIPNC/bundle.json","state":"https://pith.science/pith/I4HFWOFNNPUGTDCRVT2RZBIPNC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I4HFWOFNNPUGTDCRVT2RZBIPNC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:I4HFWOFNNPUGTDCRVT2RZBIPNC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"96944790aad8137a9ff562b3877ed43333ef06ab2f0a7aeb30bf4b3d6911bea7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-27T14:00:23Z","title_canon_sha256":"4105426690f8e982941b7783fddbb240ce1bc1890c3d532eefea7d1a4c959ea6"},"schema_version":"1.0","source":{"id":"2008.12120","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.12120","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"arxiv_version","alias_value":"2008.12120v2","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.12120","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_12","alias_value":"I4HFWOFNNPUG","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_16","alias_value":"I4HFWOFNNPUGTDCR","created_at":"2026-07-05T01:48:51Z"},{"alias_kind":"pith_short_8","alias_value":"I4HFWOFN","created_at":"2026-07-05T01:48:51Z"}],"graph_snapshots":[{"event_id":"sha256:461172451cb21a246cb7da439da9b4e15675cc606779a3a68325cef4ab0a85f6","target":"graph","created_at":"2026-07-05T01:48:51Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2008.12120/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We investigate signatures of magnetic fields and activity at the surface and in the prominence system of the ultra-rapid rotator V530 Per, a G-type solar-like member of the young open cluster $\\alpha$~Persei. This object has a rotation period shorter than all stars with available magnetic maps. With a time-series of spectropolarimetric observations gathered with ESPaDOnS over 2 nights on the CFHT, we reconstruct the surface brightness and large-scale magnetic field of V530 Per using the Zeeman-Doppler imaging method, assuming an oblate stellar surface. We also estimate the short term evolution","authors_text":"A. A. Vidotto, B. Zaire, C. P. Folsom, C. Villarreal D'Angelo, F. Gallet, J. -F. Donati, M. Jardine, P. Petit, S. C. Marsden, T. -Q. Cang","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-27T14:00:23Z","title":"Magnetic field and prominences of the young, solar-like, ultra-rapid rotator V530 Per"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.12120","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:5bf51274a7bf707d7a06c511aa9643755d3608232c0f5b83dd101a6b6dd6365b","target":"record","created_at":"2026-07-05T01:48:51Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"96944790aad8137a9ff562b3877ed43333ef06ab2f0a7aeb30bf4b3d6911bea7","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-27T14:00:23Z","title_canon_sha256":"4105426690f8e982941b7783fddbb240ce1bc1890c3d532eefea7d1a4c959ea6"},"schema_version":"1.0","source":{"id":"2008.12120","kind":"arxiv","version":2}},"canonical_sha256":"470e5b38ad6be8698c51acf51c850f68b3ec08c62f8f4f00a5f696a00b736a9b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"470e5b38ad6be8698c51acf51c850f68b3ec08c62f8f4f00a5f696a00b736a9b","first_computed_at":"2026-07-05T01:48:51.875443Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:48:51.875443Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"bXqfxyJ+bRLIzKHTtWyzlYbbuQR+MSG9i3Ax2LlUjZcKWU7YUrciOeTv9oPM3z505qVjse0ujMlwz568SZk+Bg==","signature_status":"signed_v1","signed_at":"2026-07-05T01:48:51.875863Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.12120","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5bf51274a7bf707d7a06c511aa9643755d3608232c0f5b83dd101a6b6dd6365b","sha256:461172451cb21a246cb7da439da9b4e15675cc606779a3a68325cef4ab0a85f6"],"state_sha256":"7dce91169e1ffa440f863f11e56cc9ad36f6e3deddb8eb13db7024f80b105cfe"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"allJ6f/xD033hGMT//NWueLLEnLOFZQQKSyMQ7Nb33Ba12LvEWlgfcJRbmIqJ3w3XH1WcyPMGgRRpMjQl+w+Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-13T22:48:58.216484Z","bundle_sha256":"f389fb3845e29db7f8e2fc828f0623e3e9ae802e7551392f2dd50c5ae496c035"}}